ALGT实验室全面推行祖母绿LMHC标准，准确披露优化等级

在购买祖母绿的时候，可能大家都曾经遇到过以下一些问题：

花大价钱购买的“微油”祖母绿，复检被检测出“重度处理”，导致价值大跌；

自己购买了检测报告上没有任何备注的祖母绿，是不是以为着购买到了无油祖母绿？

如果要购买的高价值祖母绿，是否需要复检呢？

这不仅是让许多消费者感到困惑的问题，也是整个珠宝行业不得不面对的现实困境。

When purchasing emeralds, many people may have encountered the following problems:

An emerald labeled as “Indications of minor clarity enhancement / modification ” was purchased at a high price, but upon re-testing, it was found as “Indications of significant clarity enhancement / modification,” causing a significant drop in value.

An emerald with no enhancement remarks on the report does that mean it is truly untreated?

When buying a high value emerald, is it necessary to re test it?

These are not only confusing issues for consumers but also real challenges facing the entire jewelry industry.

ALGT宝石实验室发现在珠宝市场中，许多祖母绿优化处理的程度，没有被进行全面并且严格的披露。这就会让消费者和商家在祖母绿交易时产生重大的误解。

ALGT Gemstone Laboratory has found that in the jewelry market, the extent of clarity enhancement on many emeralds is not rigorously disclosed. This often leads to serious misunderstandings between buyers and sellers.

例如同样写着“微油”的祖母绿，如果标准不同，那实际上两颗祖母绿的优化程度 可能相差两个等级，甚至更多。

For example, two emeralds both labeled as “minor oil” may actually differ by two or more of clarity enhancement levels if different standards are used.

例如这颗祖母绿在它附带的证书上被标注为MODERATE也就是中油，但当我们使用FTIR进行检测的时候，却发现它的填充物的指数已经超越了显示范围，这表明这个祖母绿的实际填充量，甚至超过标准意义的重油。

Take one of the emeralds that we had examed in the lab as an example: its certificate lists it as “MODERATE,” but when we tested it using FTIR, the presence of the clarity enhancement index exceeded the measurable range, indicating that the actual filler amount surpassed what is considered “Significant” by standard definitions.

此外除了Oil/Resin，祖母绿有的时候还会接受其他方式的优化处理，例如有色油和蜡的填充，如果检测到类似的情况，那么实验室有责任在报告中名且的标注出来。

另外由于祖母绿的优化处理都是可逆的，也就是说，商家完全可以在出过证书之后，再对祖母绿重新进行优化处理。

而实验室报告的检测结果只能证明祖母绿在当下的情况。所以在购买祖母绿的时候，对宝石进行复检是非常重要的。

Furthermore, aside from oil or resin, emeralds may also be filled with other substances such as colored oil or wax. If such clarity enhancement are detected, the lab has a responsibility to clearly indicate them on the report. Additionally, since the clarity enhancement of emerald are reversible, it is entirely possible for a gemstone to be retreated after a certificate has been issued. Therefore, a lab report only reflects the emerald’s clarity enhancement condition at the time of testing, which makes re-testing especially important when purchasing emeralds.

基于对以上几点的担忧，ALGT宝石实验室会在实验室的祖母绿报告中，会使用文字，直接明确地表达祖母绿的优化程度，并在显著的位置将结果完整的呈现出来。

In response to these concerns, ALGT clearly communicates the clarity enhancement level of emeralds directly in the report, using clear language and placing this information in a prominent position.

为了帮助大家更好的了解祖母绿的优化情况，我们向广大珠宝消费者和珠宝从业人员介绍ALGT的祖母绿检测标准。因为就像我们的SLOGAN说的那样：BECAUSE YOU DESERVE THE TRUTH.

To help both consumers and professionals better understand clarity enhancement, ALGT introduces its emerald grading and reporting standards. As our slogan says: "Because You Deserve the Truth."

首先ALGT实验室按照CIBJO和LMHC标准中关于祖母绿优化处理的规则进行分级和披露。

这两个机构是国际上，公认的，为珠宝鉴定领域指定标准和规则的两个机构。

LMHC，全称‌：Laboratory Manual Harmonisation Committee（实验室手册协调委员会）

CIBJO，全称‌：国际珠宝联合会（Confédération Internationale de la Bijouterie, Joaillerie et Orfèvrerie）

Firstly, ALGT grades and discloses emerald clarity enhancement in accordance with the standards set by CIBJO and LMHC—two internationally recognized organizations that define rules and standards in gemstone identification.

LMHC stands for Laboratory Manual Harmonisation Committee.

CIBJO stands for Confédération Internationale de la Bijouterie, Joaillerie et Orfèvrerie (World Jewellery Confederation).

其次ALGT的祖母绿优化处理评级是严格按照以上两个机构定制的标准来执行的，共为5个等级。

Secondly, ALGT strictly follows the clarity enhancement(quantification and identification of filler in fissures) disclosure system defined by these two institutions, using a five-level grading scale.

此外，对于有色油，树脂以及蜡充填祖母绿 的我们会进行明确的标注。

Additionally, emeralds filled with colored oil, resin, or wax will be clearly marked as such on the report.

关于祖母绿的颜色体系，ALGT实验室遵循大部分LMHC实验室的标准，将颜色根据饱和度从浅LIGHT至深DARK进行分级，使用文字准确的描述宝石的颜色，不采用中国国内常用的商业名称，以免发生消费者对于宝石的实际颜色并不了解的情况发生。

Regarding emerald color grading, ALGT follows the standards used by most LMHC laboratories. Colors are graded by saturation levels from LIGHT to DARK, and described in clear, precise language rather than using commercial names commonly found in the market. This avoids misunderstandings about a gem’s actual appearance.

对于拥有非常漂亮颜色的祖母绿，ALGT会根据情况给与Fine Color Quality(优秀品质），和Extra Fine Color Quality（极佳品质）进行品级。

For emeralds with particularly beautiful color, ALGT may assign special quality grades:

· Fine Color Quality

· Extra Fine Color Quality

如果客户想进一步的了解祖母绿内部优化处理的情况，ALGT实验室可以提供一项额外的服务：对客户提供的祖母绿在检测当下，所处于的的优化情况和相关图谱。

If a customer wishes to gain further insight into the clarity enhancement of their emerald, ALGT offers an optional service that provides an analysis and related spectrum showing the treatment condition at the time of testing.

需要注意的是，ALGT实验室不会在报告上对人造宝石给出品质的分级。

此外，ALGT拥有一套内部建立的祖母绿产地数据库，涵盖多个主要产区的化学元素特征。我们通过EXDRF对祖母绿进行微量元素分析，并将测试结果与数据库中的典型样本进行比对。结合显微镜下对内含物特征的观察，我们为每一颗祖母绿提供科学、可靠的产地判断建议。

ALGT欢迎珠宝商、设计师及珠宝爱好者携带宝石前来检测，我们将以专业的服务，帮助您深入了解自己的宝石。

Lastly, it is important to note: ALGT does not provide quality grading for synthetic gemstones on its reports.

In addition, ALGT has developed an internal emerald origin database that includes the chemical element profiles of major mining regions. Using EXDRF spectrometry, we analyze the trace elements in emeralds and compare the results with our database of reference samples. Combined with microscopic observation of inclusion characteristics, we provide a scientific and reliable origin assessment for each emerald.

ALGT welcomes jewelers, designers, and gemstone enthusiasts to bring their stones for testing. With our professional services, we help you gain deeper insight into the true nature of your gemstones.

注释：

关于CIBJO

CIBJO涵盖整个珠宝、宝石和贵金属行业——纵向覆盖从矿场到市场的整个产业链，横向覆盖各个生产、制造和贸易中心的各个组成部分。其成员并非个人，而是具有代表性的协会或商业机构。这些成员包括来自全球45多个国家的国内和国际贸易组织，以及众多国际珠宝行业的领军企业和服务提供商。

该联盟也是国际钻石、宝石和珠宝行业中唯一获得联合国经济及社会理事会（ECOSOC）正式咨询地位的组织。这使它能够在行业内推进联合国的计划和目标，并担任各国政府和联合国秘书处的技术专家、顾问和咨询师。此外，它还是联合国全球契约的成员，致力于实现可持续发展目标。

The Confederation covers the entire jewellery, gemstone and precious metals sectors – vertically, from mine to marketplace, and horizontally within each of the component parts in the various production, manufacturing and trading centres. Its members are not individuals, but rather representative associations or commercial bodies. They include national and international trade organisations from more than 45 countries around the world and many of the international jewellery sector’s leading corporations and service providers.

The Confederation is also the only organisation in the international diamond, gemstone and jewellery sectors to have received official consultative status with the Economic and Social Council (ECOSOC) of the United Nations. This enables it to advance programmes and goals of the UN within the industry, serving as a technical expert, adviser and consultant to governments and the UN Secretariat. It additionally is a member of the UN Global Compact and is committed to the fulfilment of the Sustainable Development Goals.

关于LMHC

LMHC 最初成立于 2001 年，汇集了位于美洲、亚洲和欧洲的七家主要国际宝石学实验室。LMHC 的主要目标是推动宝石学报告语言的统一

LMHC 与任何贸易组织均无正式联系。

LMHC 定期召开会议，讨论和合作处理各种宝石学问题，并协调其宝石学报告中使用的语言。当发现与行业相关时，这些发现将以信息表的形式发布。这些文件中的观点或发现基于最新出版时的知识水平，并可能随着新信息的出现而发生变化。

LMHC was originally formed in 2001, bringing together 7 major international gemmological laboratories based in America, Asia and Europe. The primary purpose of LMHC is to work towards the harmonisation of gemmological report language.

The LMHC is not formally connected to any trade organization.

The LMHC meets regularly to discuss and cooperate on various gemmological issues and to harmonise the language used in their gemmological reports. When findings are relevant to the trade, these are released in the form of Information Sheets. The opinions or findings in these documents are based on the state of knowledge at the time of the latest publication and may change as new information becomes available.

ALGT上海实验室

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